Remove deprecated JS code

Change-Id: If6bd3eca25b2ad239643050ccc20f5d6e9513312
Update dynamic image quality handling

Change-Id: I770b89fb342109cd4b289167e2e16aec4598d5fa
Fix jsduck documentation

Change-Id: I2746ec256d0ca466c1a9e72a7deb170302a7ab4b
Merge topic 'pvw-viewport-clean-up' into next

522103e Fix jsduck documentation
7917f1e Update dynamic image quality handling
bc275f6 Remove deprecated JS code